Plaster reenforcing fabric



June 29, 1937. E. D. CODDINGTON 2,085,604

PLASTER REENFORC ING FABRI C Filed March 16, 1936 Cube/wag Patented June 29, 1937 UNETED STATES PATENT @FFEQE PLASTER REENFORCIN G FABRIC Application March 16, 1936, Serial No. 69,202

2 Claims.

This inventionrelates to reenforcing fabrics employed in building construction as a ground for stucco, plaster and the like, and more particularly to that type of fabric comprising a sheet of heavy 5 fibrous material bent back and forth to provide a series of folds or undulations and having straight parallel stiffening rods intersecting the hills and bridging the valleys of the undulations so as to form an anchorage for the plastic material which is applied to one surface of the sheet. Such a type of reenforcing fabric is described in my Patent No. 1,750,877 dated March 18, 1930, upon which the present invention represents an improvement.

In the reenforcing fabric disclosed in said patent, a plurality of sheet metal or wooden stay strips are disposed within the bottoms of certain of the folds so as to preserve them against collapse and also to provide a reenforcement for the fabric in a direction transversely of the reenforcing rods.

An important object of the invention is to provide a reenforcing fabric of the above character in which the reenforcing rods are extended beyond one marginal edge of the fabric and bent downwardly so as to snugly overlie and bear against an adjacent sheet.

Other objects and advantages will become apparent from the following detailed description of a preferred embodiment of the invention, reference being had to the accompanying drawing in which:

Figure 1 is a face view of a sheet of plaster reenforcing fabric;

Figure 2 is a perspective view of a joint between two adjacent sheets of reenforcing fabric showing the manner in which the sheets are adapted to be assembled in a building structure; and

Figure 3 is a cross-sectional view on the line 3-3 of Fig. 2 through the overlapped ends of a pair of adjoining sheets.

In Fig. 1 is disclosed a plaster reenforcing fabric which is adapted to be nailed to the studs and joists of a building and to have a coating of stucco or plaster applied to its outer face in the construction' of, Walls, partitions and ceilings. The

- fabric comprises a backing sheet of heavy building paper I bent back and forth so as to form a continuous series of regularly-spaced folds or undulations 2 extending in a horizontal direction. Intersecting the hills and bridging the valleys of the undulations at right angles thereto are a great number of straight, spaced, parallel metal rods 3 which extend crosswise of the sheet.

These rods stiffen the sheet in an upright direction, and in order to prevent flexing of the sheet in its horizontal direction a plurality of light sheet metal stays d, of generally U-shaped crosssection, are disposed Within alternate valleys upon the plaster-receiving side of the sheet and beneath the rods 3. These stays extend from a position flush with one margin to of the sheet to a position relatively close to but spaced from its opposite margin $17, so as to thus permit a slight overlap between adjacent sheets. The upstanding flanges 10 of the U-shaped stays are welded or otherwise rigidly secured to the overlying rods 3. For imparting a better heat-insulating effect, the surfaces of the sheets i which oppose the dead air space within the walls or partitions of a buildin 15 (that is, the sides of the sheets opposite those which receive the plaster coating) are covered by a bright heat-reflective material 5, such as aluminum foil.

The rods 3 terminate even with one edge lc of the sheet and are extended a substantial distance beyond its opposite side id; as best indicated in Fig. 1. The purpose of this is to obtain a sufiiciently extensive overlap of the metal rods with respect to contiguous sheets of reenforcing fabric to prevent cracking of the plaster adjacent the edges of the sheets.

As best illustrated in Fig. 2 two sheets A and B of reenforcing fabric are arranged with their opposite ends to and id overlapped along a horizontal line with the reenforcing rods extending in approximate alignment. Overlying the vertical edges of these sheets A and B is a third sheet of fabric C and these three are all fastened to one of the upright studs S of the building by tacks 5 driven through the bottoms of aligned stays d.

An important feature of the invention resides in the direction given the extended ends of the wire rods 3. As shown in Fig. 3 these ends 3a are slightly bent toward the sheet of building 40 paper i so as to overlie a hill upon a laterally adjacent sheet and to effect a resilient engagement therewith. Similarly the ends 31) of the rods 3 which terminate even with the sheet are downturned, i. e., in a direction toward the sheet, to avoid gaps between the rods and the sheet. By this arrangement, the ends of the rods have no tendency to project outwardly of the wall but terminate closely adjacent the sheet and provide a snug overlap between adjacent sheets. 50

The mode of assembling the sheets of reenforcing fabric as described above in the erection of the walls and partitions is merely suggestive, this being a matter of practice which may be varied to suit special conditions or individual preferences. 55

It will be apparent that the invention may assume other forms than the preferred embodiment illustrated above.

I claim:

5 1. A reenforced plaster-supporting fabric comprising a sheet of flexible material bent back and forth to provide a series of regularly spaced undulations, a plurality of reenforcing rods passing transversely through the undulations and being 10 extended beyond one edge of the sheet, and bent in a direction toward the surface of the sheet and a plurality of metal stays of trough-shaped crosssection seated Within the bottom of certain of the undulations and having their side walls r1lg 15 idly afiixed to the reenforcing rods.

2. A reenforced plaster-supporting fabric combottom of certain of the undulations and having their side walls rigidly afiixed to the reenforcing rods, said stays terminating even with one edge of the sheet and inwardly of the opposite edge of the sheet.

EDWIN D. CODDINGTON. 

